RKB LL 575349/LL 575310 tapered roller bearing

RKB LL 575349/LL 575310 is a reference of tapered roller bearing, within Bearings. Request a quote for LL 575349/LL 575310 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

RKB tapered roller bearings are separable units made up of a cone (inner race with rollers and cage) and a cup (outer race). They are designed to support radial and axial loads in one direction, so they are mounted in opposed or matched pairs. They are used in applications where rigidity, load capacity and precision must be combined, such as gearboxes, vehicle hubs, machine tool spindles and mining and steel industry equipment.

The designation of these bearings is read as two part numbers separated by a slash: the first corresponds to the cone and the second to the cup. In the LL series, examples such as LL 483448/LL 483418 or LL 575349/LL 575310 show that each number identifies one of the two parts. The LL prefix indicates a light-section tapered roller series, and the following digits define dimensions and angles. To order the correct replacement, you must provide the complete part number, as shown on the drawing or on the part.

These bearings are used in equipment where loads are combined and variable. In Argentina they are found in transmission gearboxes, reducers, axles and hubs of agricultural, road and earthmoving machinery. They are also present in lathe and milling machine spindles, in conveyor belt rollers and in mining and steel industry equipment. Their ability to work with axial load in one direction makes them suitable for tandem or opposed mounting, depending on the shaft load.

To select correctly, consider the radial and axial load, the rotation speed and the environmental conditions. Mounting requires precise alignment of the shaft and the housing, since angular misalignment reduces service life. Lubrication can be with grease or oil, and the seal is chosen according to the contamination of the environment. Internal clearance is adjusted during mounting: excessive clearance generates noise and wear, while insufficient clearance raises the operating temperature.

Tapered roller bearings are manufactured under dimensional standards that allow interchangeability between different brands. When replacing a part, the safest approach is to compare the complete cone and cup part numbers, or to take the main dimensions: bore diameter, outer diameter and total width. If the part number on the part is not legible, the part can be identified by its dimensions and construction features to find the appropriate equivalent.

If you need a quote for an RKB tapered roller bearing, write to us on WhatsApp with the complete part number or with the cone and cup dimensions. At MR Accesorios Industriales we will quote the exact part number or size you send us and indicate the compatible alternative if you bring a part from another brand. With more than 80 years in the market, we reply shortly so your equipment keeps running.